Topic: Ground Loop Noise
Hey there. I've been using my RME FF400 for years and it's been perfect. I have just upgraded my iMac and found it has no Firewire port so bought TB3>TB2>FW adapters. Now when I plug in I get nothing but a terrible buzzing sound through headphones or analog outs. I get no signal at all from my DAW which is configured to output to the FF400. The FF400 will not operate on Bus power which it did before, I'm guessing not enough power through TB3?
I have moved the power supply for the FF400 to 3 different outlets, none of them any better.
Any help is much appreciated